From the game, Bioshock. Basically he's a behemoth mofo that is damn near impossible to bring down only with weapons. Usually near the demented children in the underwater city, Big Daddy will stop at nothing to protect that little girl.

Player 2: OMFG GTFO! theres a Big Daddy ready to pounce on your ass and beat you down like a schoolgirl!

A huge mutated person sealed permanently inside of an irregular diving suit. A pain in the ass to kill, and really easy to get killed by. Seriously! The first time you fight one you have a shotgun that's supposed to do f***loads of damage, and it doesn't work, and at the same time, he has a 30 inch diameter drill that's busy working it's way through your skull while you're shooting! But still very awesome. They moan like whales.

"The frigging Big Daddy keeps killing me. At least I'll respawn and get to have my ass handed to me again."

a male that has it all figured out.. life, work, education, religion, family, friends, relationships, fashion, the smell good and last but not least the sex. This male has a reason to call himself a MAN. He knows how to make a woman happy in every way. BODY, is like WOWWWWW.. sex game is like OH big DA...DDEEEE... a couple of examples that will give you proof that your a big DADDY.

If you have a job/career thats doesnt involve kelos,grams,and nickle bags.. OH BIG DADDY
If you have further education other than middle school and sum high.. OH BIG DADDY
If you drive your own car and not your momma's.. OH BIG DADDY
(a plus is one that's not made in 1932)
If you know GOD and trust him with your all.. OH BIG DADDY
If you can kick it with your fam without wishing sumbody will call with sumthing to do.. OH BIG DADDY
If you can keep it 100 with er'body reg of the situation.. OH BIG DADDY
If you can please a woman with every twich of a muscle.. OH BIG DA..DEEE...
If you have a body that will make a woman's legs cross at the site of you with your shirt off..OH BIG DADDY
If your wardrobe dont include 5xl white t's with 3 sizes too big jeans..OH BIG DADDY
(POLO is a plus)
If you stay in the barbershop jus to keep your jank tight.. OH BIG DADDY
and If you wear one of the following; SEAN JOHN i am king or unforgiveable, BURBERRY OR USHER.. OH BIG DADDY

if you can say that at least half if not all these things describe you WELL THEN OH BIG DADDEEEE

An incredible difficult to kill monster in Bioshock. The worst part is that you don't necessarily have to kill it, but if you don't you wont get the "little sister" (maybe that's why they call it bigdaddy) and without what she gives you it's very difficult to finish the game, so you have to go through the nigthmare of killing one everytime you see that piece of shit walking around, and if you are a begginer i guarantee you'll die at least 3 times before killing one but tha's the fun of the game zD.

noob*playing*bioshock: mmmh i hear some heavy steps.

(BigDaddy appears)

noob*playing*bioshock: so thats the monster i heard of it doesn't look so difficult to kill i'll attack it.

( 5 seconds later )

noob*playing *bioshock: what?!!! i'm already dead but i didn't do anything to it damn!!!